Excavator.



G. H. GALESON.

EXOAVATOR.

APPLIOATION FILED JULY 29, 1908.

Patented Feb. 16, 1909.

2 SHBETSSHEET 1.

A T TOE/V5 Y C. H. OALESON.

2 SHEETS-SHEET 2 EXGAVATOR.

APPLICATION FILED JULY 29, 190B.

Patented Feb. 16,

2&-

INVENTOE A TTOE/VEY CHRISTOPHER noatsson, or SPOKANE, WASHINGTON.

EXCAVATOR.

Specification of Letters Patent.

Patented Feb. 16,1909.

Application filed July 29, 1908. Serial No. 445,911.

To all whom it may concern:

Be it known that I, CHRISTOPHER H. OALESON, citizen of the UnitedStates, residing at Spokane, in the county of Spokane and State ofWashington, have invented certain new and useful Improvements inExcavators, of which the following-is a specification.

This invention relates to excavators, and

articularly comprises a novel and im roved orm of bucket arranged to runup ant down on an inclined track, which latter may be set at any angledesired. Novel and imroved means are provided for dumping the ucket atthe upper end of the run.

The invention will be found particularly useful on ditches and the sidesthereof, and will excavate the dirt from the bottom of the ditch andraise the same to the banks or otherwise as desired.

The invention illustrated in the accompanying drawings in whict- Figure1 is a side elevation of the bucket; F'g. 2 is a longitudinal verticalsection; Fig. 3 is an end view of the track and bucket; Fig. 4 is a sideview of the track and bucket, the latter being shown in full lines indumpingposition, and in dotted lines in carrying position.

Referring specifically to the drawings, the track as shown in Figs. 3and 4 is preferably constructed of metal shapes, having side bars 6, uper cross bars 7 and rails 8 at the lower on s of the side bars, therails being preferably formed of angle irons so that the carriage of thebucket will run on .the flanges thereof. These parts are suitablybraced, as indicated at 9, and are otherwise connected and boltedtogether to form a rigid track and structure within or along the underside of which the bucket operates. In use, the lower. end of this trackwill be placed in a ditch and the up or end will be supported on thebank or (um and obviously it may be set at any angfe desired.

The bucket carriage consists of a pair of side frames 10 each of whichhas front and rear. upper and lower wheels 11 and 12 which runrespectively on the upper and end sides of the track& The lower wheels12 are grooved, and run on a rib 13 on the under sideof the track 8. Asegmental bucket 14 is pivoted by a cross rod 15 between the carriage.frames '10, the pivot rod passing canals to operate on through theopposite sides of the bucket. The side frames 10 are spaced apart by aflanged top plate 16 extending across between the carriage frames andassisting in supporting the bucket. At the upper edge the sides of thebucket have flanges 17 which are arranged to strike the upper edge ofthe side frames 10 to'. ing down below t .e horizontal or operativeposition. A cable 18 is attached to the sides of the bucket near thebottom thereof for the purpose of hauling tie same up the track, andgravity will return to the bottom of'tlie incline.

To dislodge coal or sticky soil from the bucket, scrapers 19 and 20 areprovided, acting res ectively on the upper and under side of t 1e bottomof the bucket. l.e scra ers 19 are held in operative position on theottoln of the bucket by springs 21, said scrapers being pivotally hungor hinged at .the rear end of the top plate 16, as indicated at 22. Therear scra ers 20 are held in position against the unc or side of thebottom ofthe bucket by springs 23. Said springs produce a yieldingpressure of the scra or against the opposite sides of the hue ct bottom,and the scrapers are set at a proper angle to clear the matter adheringthereto, when the bucket is dumped.

The bucket is dumped by means of a pair of tri s 24, each comprising atriangular shapes block pivoted at 25 to an angle bracket 26 fastened tothe top of the track. At each side the bucket has an arm 27 projectingupwardly and provided with a roller 28. The trips are roperly positionedto be struck by these rol ers.

In 0 eration, when the bucket is hauled up from tlie bottom of theincline it will pick up a load of dirt from the side on reaching thetrips 24 the said trips will lift and allow the bucket to passthereunder, the trips being lifted by contact of the rollers 28therewith. The cable 18 is then slacked, after the bucket passes the tris, and the bucket slides back down the inc inc and the rollers 28 strikethe blunt upper ends of the trips thereby tilting the bucket on itspivot 15, and dumping the same, and when dumped the rollers 28 will passunder the trips and the bucket will resume its former revent the bucketswingthe bucket of the ditch, and

bucket bottom of anyriage movable back same, and a dumping the carriage,of trips mounted on the track, 1

and arranged to dump the bucket.

2. The combination with a track, a caring bucket mounted on the carriageand having projecting arms, of a trip comprising a block pivoted to thetrack, to swing up an down and arranged to be struck and lifted by thearm to allow the bucket to pass in one direction and to strike said armsand tilt the bucket as it passes in the other direction.

3. The combination of a track having depending sides and rails at thelower edges of said sides, a carriage having Wheels which run on saidrail, a dumping bucket ivoted to the carriage and having upwar ly ex- 1tending arms, and trips pivoted in the upper part oft-he track anarranged to swing up and down and hanging in position to be struck bysaid arms, and shaped to allow the bucket to pass in one directionand tostop the arms and dump the bucket as it passes in the other direction.

- 4. The combination with opposite side frames provided with wheels, ofa cross piece connecting the side frames and forming a top, and asegmental bucket pivoted between rlage movable along the same, and adumpeiaece the side frames and arranged to swing up and downtherebetween.

5. The combination with side frames provided with wheels, of a segmentaldumping bucket pivoted between said frames, and a scraper supported bythe frames and arranged to ear against the bottom of the bucket.

6. The combination with a side frames, of a segmental ucket pivotedbetween the same and arranged to swing up and down, and spring pressedscrapers supported by the frames and bearing against opposite sides ofthe bottom of the bucket.

7. The combination with an inclined track, and a carriage which runsthereon, of a dumping bucket pivoted to the carriage and having upwardlyextending arms provided with rollers, and trips comprising blockspivoted to the track and arranged to be struck by the rollers, saidtrips having a long inclined side presented at an acute angle toward thelower end of the incline, and upper ends presented at an obtuse angletoward the up er end of the incline, whereby when the bucl trips willlift and pass the same, and when the bucket runs down the track theobtuse ends of the trips will strike the rollers and dump the bucket.

In testimony whereof, I afliX my signature in presence of two witnesses.

CHRISTOPHER H. CALESON. Witnesses:

HUGO F. 'LUHMAN, G. A. GRAHAM.

air of wheeledret is drawn up the track the

